diff options
Diffstat (limited to 'drivers/gpu/drm/bridge/tc358768.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358768.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c index 25624b0ed078..4a0ecf33b47b 100644 --- a/drivers/gpu/drm/bridge/tc358768.c +++ b/drivers/gpu/drm/bridge/tc358768.c @@ -335,13 +335,17 @@ static int tc358768_calc_pll(struct tc358768_priv *priv, u32 fbd; for (fbd = 0; fbd < 512; ++fbd) { - u32 pll, diff; + u32 pll, diff, pll_in; pll = (u32)div_u64((u64)refclk * (fbd + 1), divisor); if (pll >= max_pll || pll < min_pll) continue; + pll_in = (u32)div_u64((u64)refclk, prd + 1); + if (pll_in < 4000000) + continue; + diff = max(pll, target_pll) - min(pll, target_pll); if (diff < best_diff) { |